8842A

Instruction Manual

6-35. EXTERNAL TRIGGER POLARITY SELECTION (Option -05 Only) 6-36

6-36.

TROUBLESHOOTING

6-36

6-37.

Initial Troubleshooting Procedure

6-36

6-38.

Diagnostic Self-Tests

6-41

6-39.

Self-Test Descriptions

6-42

6-40.

Digital Controller Troubleshooting

6-45

6-41.

IN-GUARD MICROCOMPUTER SYSTEM

6-45

6-48.

DISPLAY SYSTEM

6-48

6-59.

ANALOG CONTROL SIGNALS

6-51

6-62.

DC Scaling Troubleshooting

6-54

6-63.

Track/Hold Troubleshooting

6-56

6-64.

Ohms Current Source Troubleshooting

6-56

6-65.

Precision Voltage Reference Troubleshooting

6-58

6-66.

A/D Converter Troubleshooting

6-59

6-67.

Power Supply Troubleshooting

6-61

6-68.

IEEE-488 Interface Troubleshooting (Option -05)

6-64

6-69.

SERVICE POSITION

6-64

6-70.

DIAGNOSTIC PROGRAM

6-64

6-71.

True RMS AC Troubleshooting (Option -09)

6-66

6-72.

SERVICE POSITION

6-66

6-73.

MAJOR PROBLEMS

6-67

6-74.

MORE OBSCURE PROBLEMS

6-69

6-75.

Guard Crossing Troubleshooting

6-70

6-76.

INTERNAL CLEANING

6-70

6-77.

Cleaning Printed Circuit Assemblies

6-70

6-78.

Cleaning After Soldering

6-71

6-2

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Fluke 8842a instruction manual External Trigger Polarity Selection Option -05 Only